The Weapon from Beyond: Starwolf, Book 1

Morgan Chane was an Earthman by parentage, but he had been born on the pirate-world Varna, whose heavy gravity had developed strength and incredibly quick reflexes in him. When he was old enough, he joined the raider-ships that looted the starworlds, and fought side by side with the dreaded Starwolves of Varna. But then there was a fight among them. Chane killed their leader, and the other Starwolves turned on him. He barely got away alive - wounded near death, his Starwolf pursuers following him across the galaxy.

The Closed Worlds: Starwolf, Book 2

When Morgan Chane and his comrades of John Dilullo's interstellar mercenaries invaded the Close World of Arkuu in search of a lost Terran expedition, they found a planet of strange menace. Incredibly powerful monsters prowled though Arkuu's dense jungles, and the ghosts of the planet's past haunted its ancient deserted cities. The Arkuuns themselves fought grimly to drive the Terrans away. But at last Chane discovered the Free-Faring, the terrible alien secret of Arkuu . . . and suddenly he knew why no Terran had left the Closed Worlds alive.

World of the Starwolves: Starwolf, Book 3

Morgan Chane was an Earthman by parentage, but he had been born on the pirate-world Varna, whose heavy gravity had developed strength and incredibly quick reflexes in him. When he was old enough, he joined the raider-ships that looted the starworlds, and fought side by side with the dreaded Starwolves of Varna. But then there was a fight among them. Chane killed their leader, and the other Starwolves turned on him. He barely got away alive—wounded near death, his Starwolf pursuers following him across the galaxy. And there was nowhere he could seek refuge, for no world would lift a hand to save one of the hated Starwolves.